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<a id='TOP' name='TOP'></a><h2 class='header'><a href='../mains.html'>root</a>/<a href='../files/lib.html'>lib</a>/<a href='../files/lib--tty.html'>tty</a>/tty-internal.c</h2>
<em class='comment'>/* <img class='icon' src='../icons/n_left.png' alt='[previous]' /><img class='icon' src='../icons/n_right.png' alt='[next]' /><a href='#L65'><img class='icon' src='../icons/first.png' alt='[first]' /></a><a href='#L104'><img class='icon' src='../icons/last.png' alt='[last]' /></a><img class='icon' src='../icons/n_top.png' alt='[top]' /><a href='#BOTTOM'><img class='icon' src='../icons/bottom.png' alt='[bottom]' /></a><a href='../mains.html'><img class='icon' src='../icons/index.png' alt='[index]' /></a><a href='../help.html'><img class='icon' src='../icons/help.png' alt='[help]' /></a>&nbsp;<input type='text' readonly onfocus='this.select();' value='+1 lib/tty/tty-internal.c'  /> */</em>
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<h2 class='header'>DEFINITIONS</h2>
This source file includes following definitions.
<ol>
<li><a href='#L65' title='Defined at 65.'>tty_create_winch_pipe</a></li>
<li><a href='#L104' title='Defined at 104.'>tty_destroy_winch_pipe</a></li>
</ol>
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<pre>
<a id='L1' name='L1'></a>   1 <em class='comment'>/*</em>
<a id='L2' name='L2'></a>   2 <em class='comment'>   Internal stuff of the terminal controlling library.</em>
<a id='L3' name='L3'></a>   3 <em class='comment'></em>
<a id='L4' name='L4'></a>   4 <em class='comment'>   Copyright (C) 2019-2020</em>
<a id='L5' name='L5'></a>   5 <em class='comment'>   Free Software Foundation, Inc.</em>
<a id='L6' name='L6'></a>   6 <em class='comment'></em>
<a id='L7' name='L7'></a>   7 <em class='comment'>   Written by:</em>
<a id='L8' name='L8'></a>   8 <em class='comment'>   Andrew Borodin &lt;aborodin@vmail.ru&gt;, 2019.</em>
<a id='L9' name='L9'></a>   9 <em class='comment'></em>
<a id='L10' name='L10'></a>  10 <em class='comment'>   This file is part of the Midnight Commander.</em>
<a id='L11' name='L11'></a>  11 <em class='comment'></em>
<a id='L12' name='L12'></a>  12 <em class='comment'>   The Midnight Commander is free software: you can redistribute it</em>
<a id='L13' name='L13'></a>  13 <em class='comment'>   and/or modify it under the terms of the GNU General Public License as</em>
<a id='L14' name='L14'></a>  14 <em class='comment'>   published by the Free Software Foundation, either version 3 of the License,</em>
<a id='L15' name='L15'></a>  15 <em class='comment'>   or (at your option) any later version.</em>
<a id='L16' name='L16'></a>  16 <em class='comment'></em>
<a id='L17' name='L17'></a>  17 <em class='comment'>   The Midnight Commander is distributed in the hope that it will be useful,</em>
<a id='L18' name='L18'></a>  18 <em class='comment'>   but WITHOUT ANY WARRANTY; without even the implied warranty of</em>
<a id='L19' name='L19'></a>  19 <em class='comment'>   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</em>
<a id='L20' name='L20'></a>  20 <em class='comment'>   GNU General Public License for more details.</em>
<a id='L21' name='L21'></a>  21 <em class='comment'></em>
<a id='L22' name='L22'></a>  22 <em class='comment'>   You should have received a copy of the GNU General Public License</em>
<a id='L23' name='L23'></a>  23 <em class='comment'>   along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</em>
<a id='L24' name='L24'></a>  24 <em class='comment'> */</em>
<a id='L25' name='L25'></a>  25 
<a id='L26' name='L26'></a>  26 <em class='comment'>/** \file</em>
<a id='L27' name='L27'></a>  27 <em class='comment'> *  \brief Source: internal stuff of the terminal controlling library.</em>
<a id='L28' name='L28'></a>  28 <em class='comment'> */</em>
<a id='L29' name='L29'></a>  29 
<a id='L30' name='L30'></a>  30 <em class='sharp'>#include</em> &lt;config.h&gt;
<a id='L31' name='L31'></a>  31 
<a id='L32' name='L32'></a>  32 <em class='sharp'>#include</em> &lt;stdio.h&gt;
<a id='L33' name='L33'></a>  33 <em class='sharp'>#include</em> &lt;stdlib.h&gt;
<a id='L34' name='L34'></a>  34 <em class='sharp'>#include</em> &lt;unistd.h&gt;
<a id='L35' name='L35'></a>  35 <em class='sharp'>#include</em> &lt;fcntl.h&gt;
<a id='L36' name='L36'></a>  36 
<a id='L37' name='L37'></a>  37 <em class='sharp'>#include</em> "<a href='lib--global.h.html'>lib/global.h</a>"
<a id='L38' name='L38'></a>  38 
<a id='L39' name='L39'></a>  39 <em class='sharp'>#include</em> &lt;glib-unix.h&gt;
<a id='L40' name='L40'></a>  40 
<a id='L41' name='L41'></a>  41 <em class='sharp'>#include</em> "<a href='lib--tty--tty-internal.h.html'>tty-internal.h</a>"
<a id='L42' name='L42'></a>  42 
<a id='L43' name='L43'></a>  43 <em class='comment'>/*** global variables ****************************************************************************/</em>
<a id='L44' name='L44'></a>  44 
<a id='L45' name='L45'></a>  45 <em class='comment'>/* pipe to handle SIGWINCH */</em>
<a id='L46' name='L46'></a>  46 <strong class='reserved'>int</strong> <a href='../Y/sigwinch_pipe.html' title='Multiple used in 13 places.'>sigwinch_pipe</a>[2];
<a id='L47' name='L47'></a>  47 
<a id='L48' name='L48'></a>  48 <em class='comment'>/*** file scope macro definitions ****************************************************************/</em>
<a id='L49' name='L49'></a>  49 
<a id='L50' name='L50'></a>  50 <em class='comment'>/*** global variables ****************************************************************************/</em>
<a id='L51' name='L51'></a>  51 
<a id='L52' name='L52'></a>  52 <em class='comment'>/*** file scope type declarations ****************************************************************/</em>
<a id='L53' name='L53'></a>  53 
<a id='L54' name='L54'></a>  54 <em class='comment'>/*** file scope variables ************************************************************************/</em>
<a id='L55' name='L55'></a>  55 
<a id='L56' name='L56'></a>  56 <em class='comment'>/* --------------------------------------------------------------------------------------------- */</em>
<a id='L57' name='L57'></a>  57 <em class='comment'>/*** file scope functions ************************************************************************/</em>
<a id='L58' name='L58'></a>  58 <em class='comment'>/* --------------------------------------------------------------------------------------------- */</em>
<a id='L59' name='L59'></a>  59 
<a id='L60' name='L60'></a>  60 <em class='comment'>/* --------------------------------------------------------------------------------------------- */</em>
<a id='L61' name='L61'></a>  61 <em class='comment'>/*** public functions ****************************************************************************/</em>
<a id='L62' name='L62'></a>  62 <em class='comment'>/* --------------------------------------------------------------------------------------------- */</em>
<a id='L63' name='L63'></a>  63 
<a id='L64' name='L64'></a>  64 <strong class='reserved'>void</strong>
<a id='L65' name='L65'></a>  65 <a href='../R/tty_create_winch_pipe.html' title='Multiple referred from 3 places.'>tty_create_winch_pipe</a> (<strong class='reserved'>void</strong>)
     <em class='comment'>/* <img class='icon' src='../icons/n_left.png' alt='[previous]' /><a href='#L104'><img class='icon' src='../icons/right.png' alt='[next]' /></a><img class='icon' src='../icons/n_first.png' alt='[first]' /><a href='#L104'><img class='icon' src='../icons/last.png' alt='[last]' /></a><a href='#TOP'><img class='icon' src='../icons/top.png' alt='[top]' /></a><a href='#BOTTOM'><img class='icon' src='../icons/bottom.png' alt='[bottom]' /></a><a href='../mains.html'><img class='icon' src='../icons/index.png' alt='[index]' /></a><a href='../help.html'><img class='icon' src='../icons/help.png' alt='[help]' /></a>&nbsp;<input type='text' readonly onfocus='this.select();' value='+65 lib/tty/tty-internal.c'  /> */</em>
<a id='L66' name='L66'></a>  66 <em class='brace'>{</em>
<a id='L67' name='L67'></a>  67     <a href='../Y/GError.html' title='Multiple used in 175 places.'>GError</a> *<a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a> = <a href='../Y/NULL.html' title='Multiple used in 5646 places.'>NULL</a>;
<a id='L68' name='L68'></a>  68 
<a id='L69' name='L69'></a>  69     <strong class='reserved'>if</strong> (!g_unix_open_pipe (<a href='../Y/sigwinch_pipe.html' title='Multiple used in 13 places.'>sigwinch_pipe</a>, <a href='../Y/FD_CLOEXEC.html' title='Multiple used in 3 places.'>FD_CLOEXEC</a>, &amp;<a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>))
<a id='L70' name='L70'></a>  70     <em class='brace'>{</em>
<a id='L71' name='L71'></a>  71         <a href='../Y/fprintf.html' title='Multiple used in 106 places.'>fprintf</a> (<a href='../Y/stderr.html' title='Multiple used in 79 places.'>stderr</a>, <a href='../D/_.html' title='Multiple defined in 2 places.'>_</a>("\nCannot create pipe for SIGWINCH: %s (%d)\n"),
<a id='L72' name='L72'></a>  72                  <a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>-&gt;<a href='../D/message.html' title='Multiple defined in 5 places.'>message</a>, <a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>-&gt;<a href='../Y/code.html' title='Multiple used in 120 places.'>code</a>);
<a id='L73' name='L73'></a>  73         <a href='../Y/g_error_free.html' title='Multiple used in 19 places.'>g_error_free</a> (<a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>);
<a id='L74' name='L74'></a>  74         <a href='../Y/exit.html' title='Multiple used in 33 places.'>exit</a> (<a href='../Y/EXIT_FAILURE.html' title='Multiple used in 74 places.'>EXIT_FAILURE</a>);
<a id='L75' name='L75'></a>  75     <em class='brace'>}</em>
<a id='L76' name='L76'></a>  76 
<a id='L77' name='L77'></a>  77     <em class='comment'>/* If we read from an empty pipe, then read(2) will block until data is available.</em>
<a id='L78' name='L78'></a>  78 <em class='comment'>     * If we write to a full pipe, then write(2) blocks until sufficient data has been read</em>
<a id='L79' name='L79'></a>  79 <em class='comment'>     * from the pipe to allow the write to complete..</em>
<a id='L80' name='L80'></a>  80 <em class='comment'>     * Therefore, use nonblocking I/O.</em>
<a id='L81' name='L81'></a>  81 <em class='comment'>     */</em>
<a id='L82' name='L82'></a>  82     <strong class='reserved'>if</strong> (!<a href='../Y/g_unix_set_fd_nonblocking.html' title='Multiple used in 2 places.'>g_unix_set_fd_nonblocking</a> (<a href='../Y/sigwinch_pipe.html' title='Multiple used in 13 places.'>sigwinch_pipe</a>[0], <a href='../Y/TRUE.html' title='Multiple used in 1520 places.'>TRUE</a>, &amp;<a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>))
<a id='L83' name='L83'></a>  83     <em class='brace'>{</em>
<a id='L84' name='L84'></a>  84         <a href='../Y/fprintf.html' title='Multiple used in 106 places.'>fprintf</a> (<a href='../Y/stderr.html' title='Multiple used in 79 places.'>stderr</a>, <a href='../D/_.html' title='Multiple defined in 2 places.'>_</a>("\nCannot configure write end of SIGWINCH pipe: %s (%d)\n"),
<a id='L85' name='L85'></a>  85                  <a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>-&gt;<a href='../D/message.html' title='Multiple defined in 5 places.'>message</a>, <a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>-&gt;<a href='../Y/code.html' title='Multiple used in 120 places.'>code</a>);
<a id='L86' name='L86'></a>  86         <a href='../Y/g_error_free.html' title='Multiple used in 19 places.'>g_error_free</a> (<a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>);
<a id='L87' name='L87'></a>  87         <a href='../S/lib--tty--tty-internal.c.html#L104' title='Defined at 104 in lib/tty/tty-internal.c.'>tty_destroy_winch_pipe</a> ();
<a id='L88' name='L88'></a>  88         <a href='../Y/exit.html' title='Multiple used in 33 places.'>exit</a> (<a href='../Y/EXIT_FAILURE.html' title='Multiple used in 74 places.'>EXIT_FAILURE</a>);
<a id='L89' name='L89'></a>  89     <em class='brace'>}</em>
<a id='L90' name='L90'></a>  90 
<a id='L91' name='L91'></a>  91     <strong class='reserved'>if</strong> (!<a href='../Y/g_unix_set_fd_nonblocking.html' title='Multiple used in 2 places.'>g_unix_set_fd_nonblocking</a> (<a href='../Y/sigwinch_pipe.html' title='Multiple used in 13 places.'>sigwinch_pipe</a>[1], <a href='../Y/TRUE.html' title='Multiple used in 1520 places.'>TRUE</a>, &amp;<a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>))
<a id='L92' name='L92'></a>  92     <em class='brace'>{</em>
<a id='L93' name='L93'></a>  93         <a href='../Y/fprintf.html' title='Multiple used in 106 places.'>fprintf</a> (<a href='../Y/stderr.html' title='Multiple used in 79 places.'>stderr</a>, <a href='../D/_.html' title='Multiple defined in 2 places.'>_</a>("\nCannot configure read end of SIGWINCH pipe: %s (%d)\n"),
<a id='L94' name='L94'></a>  94                  <a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>-&gt;<a href='../D/message.html' title='Multiple defined in 5 places.'>message</a>, <a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>-&gt;<a href='../Y/code.html' title='Multiple used in 120 places.'>code</a>);
<a id='L95' name='L95'></a>  95         <a href='../Y/g_error_free.html' title='Multiple used in 19 places.'>g_error_free</a> (<a href='../Y/mcerror.html' title='Multiple used in 392 places.'>mcerror</a>);
<a id='L96' name='L96'></a>  96         <a href='../S/lib--tty--tty-internal.c.html#L104' title='Defined at 104 in lib/tty/tty-internal.c.'>tty_destroy_winch_pipe</a> ();
<a id='L97' name='L97'></a>  97         <a href='../Y/exit.html' title='Multiple used in 33 places.'>exit</a> (<a href='../Y/EXIT_FAILURE.html' title='Multiple used in 74 places.'>EXIT_FAILURE</a>);
<a id='L98' name='L98'></a>  98     <em class='brace'>}</em>
<a id='L99' name='L99'></a>  99 <em class='brace'>}</em>
<a id='L100' name='L100'></a> 100 
<a id='L101' name='L101'></a> 101 <em class='comment'>/* --------------------------------------------------------------------------------------------- */</em>
<a id='L102' name='L102'></a> 102 
<a id='L103' name='L103'></a> 103 <strong class='reserved'>void</strong>
<a id='L104' name='L104'></a> 104 <a href='../R/tty_destroy_winch_pipe.html' title='Multiple referred from 5 places.'>tty_destroy_winch_pipe</a> (<strong class='reserved'>void</strong>)
     <em class='comment'>/* <a href='#L65'><img class='icon' src='../icons/left.png' alt='[previous]' /></a><img class='icon' src='../icons/n_right.png' alt='[next]' /><a href='#L65'><img class='icon' src='../icons/first.png' alt='[first]' /></a><img class='icon' src='../icons/n_last.png' alt='[last]' /><a href='#TOP'><img class='icon' src='../icons/top.png' alt='[top]' /></a><a href='#BOTTOM'><img class='icon' src='../icons/bottom.png' alt='[bottom]' /></a><a href='../mains.html'><img class='icon' src='../icons/index.png' alt='[index]' /></a><a href='../help.html'><img class='icon' src='../icons/help.png' alt='[help]' /></a>&nbsp;<input type='text' readonly onfocus='this.select();' value='+104 lib/tty/tty-internal.c'  /> */</em>
<a id='L105' name='L105'></a> 105 <em class='brace'>{</em>
<a id='L106' name='L106'></a> 106     (<strong class='reserved'>void</strong>) <a href='../Y/close.html' title='Multiple used in 154 places.'>close</a> (<a href='../Y/sigwinch_pipe.html' title='Multiple used in 13 places.'>sigwinch_pipe</a>[0]);
<a id='L107' name='L107'></a> 107     (<strong class='reserved'>void</strong>) <a href='../Y/close.html' title='Multiple used in 154 places.'>close</a> (<a href='../Y/sigwinch_pipe.html' title='Multiple used in 13 places.'>sigwinch_pipe</a>[1]);
<a id='L108' name='L108'></a> 108 <em class='brace'>}</em>
<a id='L109' name='L109'></a> 109 
<a id='L110' name='L110'></a> 110 <em class='comment'>/* --------------------------------------------------------------------------------------------- */</em>
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